Drawing board



Nov. 12, 1929. MORATZ 1,735,292

DRAWING BOARD Filed March 9, 1925 2 Sheets-Sheet 1 Fig.2. Fig.1.

Inventor: v lijlloz ajz \JWMM Nov. 12, 1929. v E. MORATZ 1,735,292

DRAWING BOARD Filed March 1925 2 Sheets-Sheet 2 Fig.5

In aent'or Ernst Moratz Wamd W Patented Nov. 12, 1929 i j warren STATESPATENT OFFICE nnnsr MORATZ, or Enos-time, NEAR'BERLIN, GERMANY DRAWINGBOARD Application filed March 9, 1525, Serial No. 14,260, and in GermanyMarch 10, 1924.

This invention las reference to drawing support; Fig. 6 is a top view ofthe guide boards for dra'ltmens use and for similar shown in Fig. 5.purposes, and it particularly intended to The adjustable drawing boardcomprises devise means of both changing the inclinathe base or supporta, the two lazy-tongs b tion of the board and its height above the andthe drawing plate proper c. The lazy- 55 table or support when in anerected position. tar as are linked at one end to thesupport a Inaccordance with my invention the adin at the other end to the drawingplate 0; justnient oi the inclination oi": the drawing e Connection withthe support a is efi'ectbgard i ff t d b lugging f, f instance, ed by astud or the like it displaceable in a t o laz -ton s secured to thetable or sun- ,Quide i which is secured to the su ort a. 60

port and to the board itself, while'the adjust- The lazy-tongs Z) areretained and locked in nicnt oi the height is performed by the on theparticular adjusted position and operagagenient of studs the likeprovided on the tive length by means of wing-nuts g, guided front orupper side of the support with in longitudinal slots of a bar m. Thisbar sockets or recesses or hooks disposed on bars on linked to one ofthe pivots of the lazyupon the lower side or upon the edges of thetongs, while the winged nut; g is screwdrawing board. By this adjustmentof the threadcdly mounted upon the opposite pivot inclination as well asof the height of the of the lazy tongs. This latter pivoted stud boardit becomes possible to so alter the relais adapted to pass through theslot of the tive position of the board with regard to the bar m. Isupport and to the drattsman that it may be The support or carrier atcomprises the side manipulated and employed in accordance rails a andthe connecting rails o The with the convenience and stature of the guide2', above referred to, is secured'to the drattsman both in the standingup. as well as side rails (4,. Upon the support a two hooks in theseated position of the drattsman. The c areadjustably mounted servingfor the 7 use of the lat-2y tongs facilitates the adjustdamping andretaining of the support or' ing procedinre, and permits off anadjustment carrier a on a table or the like. Adjacent in any desiredposition, and without the the two side edges of the drawing plate 0necessity of a merely stepwise adj ustment in the hook-bars orsocket-bars d are secured 3 the inclined position, as has been the casein in the sockets or recesses n of which the bolts 89 the previous art.I 0 which are to be rigidly secured to the sup- The device will be morefully described port a may be inserted. This arrangement with referenceto the accompanying drawing serves for the change of operative height ofshowing by the way of exemplification an emthe board above the table.

Figure 1 being a sideview of the adjustable according to the inventionis effected subdrawing board in the collapsed position stantiallyfollows:-The drawing board ready for transportation; Figure 2 shows theis placed upon a table, a bank, a side board ,0 adjustable drawing boardin top VlGW seen o r the like, and is securely clamped in pofrom aboveupon the drawing plate; Figure sltion by means of the ad ustable hooks e3 is a side View of the drawing board in the and by loosening and thentightening the operative position, as secured to a table; the screws f.Then the winged nut g on the lazydotted lines representing the drawingboard tongs is released and the drawing plate 0 at different inclinationand with its operais swung on the pivot 0 into the desired potive heightabove the table reduced; Figure sition'. After this position has beenarrived iis an illustration of the supporting member at the winged nut gis again tightened, provided at the front edge of the board carwhereuponthe drawing board is ready for rier on an enlarged scale and in sideview. operation. When it is desired to lower the Fig. 5 is an elevationof portion of the drawing board with relation to the table table showingthe guide for the adjustable the bolt 0 withdrawn from its'socket, the

bodiment of the principles of this invention, The manipulation of thedrawing board drawing plate 0 is lowered as indicated in the dotted-lineposition, and the bolt 0 is then again introduced into the sockets ofthe rail (Z.

In order to prevent striking of the lowest links of the lazy-tongsagainst the support in the lower positions the pivotal stud which islinked to the rails a, is raised-in its slotted guide 2', or it iscaused to become-displaced in this guide 'z'upon the lowering of thedrawing plate.

The invention has been shown and illustrated in its broad aspects only,and it should be understood that itis susceptible of alterations andchanges to suit the convenience of the user and varying conditions ofapplication, and without deviatingfrom the spirit or" the invention, asdefined in the claims hereunto annexed.

I claim 1. In a drawing table, in combination, a drawing boar'd, asupport for said drawing board, a guide-on said support, means formaintaining said drawing board in an inclined position, saidineanscomprising lazytongs secured at one end'to said board and pivota'llysecured in said guide at'the other end, andnieans'to adjustably anddetachably and pivotally connect said drawing board to said support atany one of a plurality of positions on the drawing board.

2. "In a drawing table, in combination, a drawing board, a support'forsaid drawing board, a plate provided with a plurality of notches securedto said board, means on said support for engagin any one ofsaid'notches,

a guide on said support, lazy-tongs secured at one end to said board andpiyotallysecured in said guide at the other end, and means forlockingsaidlaZy-tongs in any one of a piurality of extended positions.

In testimony whereof} afiixmy signature.

ERNST MORATZ.

